{% load static %}
<!DOCTYPE html>
<html>
<head>
    <title>通讯录系统</title>
    <link href="{% static 'css/bootstrap.min.css' %}" rel="stylesheet">
</head>
<body>
    <div class="container mt-4">
        {% block content %}
        {% endblock %}
    </div>
</body>
</html>